SELECTED FINANCIAL STATEMENT INFORMATION, Accrued Expenses and Other Current Liabilities (Details) - USD ($) $ in Thousands	Oct. 31, 2015	Oct. 31, 2014
Accrued employee compensation and related payroll taxes	$ 53,238	$ 52,480
Deferred revenue	16,498	12,481
Accrued customer rebates and credits	8,072	10,924
Accrued additional purchase consideration	6,859	90
Other Liabilities, Current	15,488	16,603
Accrued expenses and other current liabilities	$ 100,155	$ 92,578